大家帮忙看看这句话,怎么写啊!!?

[dangdang0883]

private void SetStudentData(IDataReader idr, StudentInfo studentInfo)
{
studentInfo.Name = idr.GetString(0);
studentInfo.Sex = idr.GetBoolean(1);
studentInfo.Birthday = idr.GetDateTime(2);
studentInfo.Nation = idr.GetString(3);
studentInfo.NationPlace = idr.GetString(4);
studentInfo.Address = idr.GetString(5);
studentInfo.Image = (byte[])idr.GetValue(6);//就这句话怎么写啊
studentInfo.Memo = idr.GetString(7);
studentInfo.StudentStatus = idr.GetString(8);
}

studentInfo.image 是 byte[] 类型;
数据库中是 image 类型;

[jinmiwa]

System.IO.FileStream fs = new System.IO.FileStream(imagePath, System.IO.FileMode.Open, System.IO.FileAccess.Read);
byte[] b = new byte[fs.Length];
fs.Read(b, 0, b.Length);
fs.Close();

或者

Stream myStream=new MemoryStream();
bitmap.Save(myStream,img.RawFormat);
int imgdatalen =Convert.ToInt32(myStream.Length);
myStream.Position = 0;
BinaryReader br = new BinaryReader(myStream);
byte[] imagebyte=br.ReadBytes((int)myStream.Length);
br.Close();
myStream.Close();

[ericzhangbo1982111]

(byte[])idr[6];
(byte[])idr["name"];

[lake_cx]

studentInfo.Image = Image.FromStream(new MemoryStream(idr.GetValue(6) as byte[]));
试试

[ericzhangbo1982111]

1楼的在做什么？

[jiatong1981]

 
  if(   rdr["image字段"]   !=   System.DbNull.Value   )   
  {   
      byte[]   bimage   =   (byte[])rdr["image字段"];   
  }